Mild
Average highs are around 20°C, so days are mild rather than hot.
May verdict
Mixed for holiday weather
Average highs are around 20°C, so days are mild rather than hot. Sunshine averages 6.2h per day, enough for a balanced month. Rainfall averages 32mm, which is relatively low for holiday planning.
Monthly averages
Temp
20°C
Rain
32mm
Sun
6.2h
Sea
18°C
Weather score
47
Mixed
Mild
Average highs are around 20°C, so days are mild rather than hot.
Drier
Rainfall averages 32mm, which is relatively low for holiday planning.
Some sun
Sunshine averages 6.2h per day, enough for a balanced month.
Cool sea
Sea temperatures average 18°C, so the water can feel cool.
Map
Compare Whyalla, Australia with nearby places by weather score, rain, sun, temperature, and swim conditions.
May20°C average high
May is on the cooler side of Whyalla's year, useful if you prefer less intense daytime heat.
Warmest monthsJanuary to March and December
This stretch sets the upper range for average daytime heat.
May32mm average rain
May is close to Whyalla's usual rainfall pattern, with little seasonal change across the year.
Driest monthsAll year
Rainfall stays comparatively low through the year.
May6.2 hours average sun
May is one of Whyalla's cloudier months, so sunshine-led plans are less reliable.
Brightest monthsJanuary to February and November to December
This stretch has the strongest sunshine in the monthly averages.
May18°C average sea
May is close to Whyalla's yearly sea-temperature average, so swimming comfort is fairly typical.
Warmest seaJanuary to March and December
Sea temperatures are usually near 23°C in this stretch, so swimming comfort is at its strongest.
May47 weather score
May scores below Whyalla's yearly average, so the weather trade-offs are more noticeable.
Best weather monthsJanuary to March and December
These months have the strongest weather score in the monthly averages.